upgrade:
  - |
    Support for the following three volume drivers have been removed.

    - Dell EMC ScaleIO
    - Dell EMC VxFlexOS
    - Dell EMC VMAX

  - |
    The following services should be removed from roles data during upgrade.

    - ``OS::TripleO::Services::CinderBackendScaleIO``
    - ``OS::TripleO::Services::CinderBackendDellEMCVxFlexOS``
    - ``OS::Tripleo::Services::CinderBackendDellEMCVMAXISCSI``